document.write( "Question 67843: Solve the following sytem by substitution:
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document.write( "4x - 12y = 5
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document.write( "-x + 3y = -1\r
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document.write( "Thanks \n" );
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Algebra.Com's Answer #48246 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! 4x - 12y = 5 \n" ); document.write( "-x + 3y = -1 \n" ); document.write( ". \n" ); document.write( "Solve for one of the variables and substitute the solution into the other equation. solve for the second variable. \n" ); document.write( "-x+3y=-1 [Solve for x (or solve for y)] \n" ); document.write( "-x=-3y-1 \n" ); document.write( "x=3y+1 [substitute this solution into the other equation and solve for y] \n" ); document.write( ". \n" ); document.write( "4x-12y=5 \n" ); document.write( "4(3y+1)-12y=5 \n" ); document.write( "12y+4-12y=5 \n" ); document.write( "4 does not equal to 5, therefore there is no solution to this system. This means that the lines never intersect or cross. \n" ); document.write( " |